MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting a phishing or malware distribution lure. The embedded URLs and the nature of the heuristics point towards an attempt to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9927
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://apartmani-mestrovic-krk.hr/files/84146251173.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee445724e5---10237195273.pdf
- https://mannerfeltdesignteam.se/ckfinder/userfiles/files/93294197691.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d7c050e861---watizafuzop.pdf
- https://doctmcooper.com/userfiles/files/fotitutofedilifewukago.pdf
- http://asvpp.fr/pdf/widomuluzalenolowiwuki.pdf
- https://navoloki.mebel18.com/uploads/files/kukux.pdf
- https://fullhousetourism.com/UploadFiles/file/20210917194708185.pdf
- https://gberwanda.com/gbe/useruploads/blogs/files/burazujexixu.pdf
- https://kenhquangcao.vn/uploads/files/49662979612.pdf
- http://yunnanyingxiang.com/ckfinder/userfiles/files/38082669458.pdf
- http://benetalent.com/upload/files/bowenunadekinosanedunoni.pdf
- http://aedjtj.pretty-match.com/upload/files/kanozanibejiregi.pdf
- http://hodoan.net/userfiles/file/27111389988.pdf
- http://life-homeshop.buyout8.com/asset/uploads/files/xetofapox.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149196dda6d2---wodopuf.pdf
- http://siblom.ru/files/upload/file/80659469031.pdf
- https://kildevangen.dk/files/80112387933.pdf
- http://nhakhoasaigonkimcuong.com/uploads/images/files/91282087815.pdf
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614cd93f2688b---wumifatinof.pdf
- http://tecnoservizi.com/userfiles/files/napufowuri.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16136759d66362---ritev.pdf
- http://currycornersugarland.com/admin/images/file/risokatapelovofokiwogi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=mortal+kombat+movie+2017
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off000107ed.bin735135a7a26790fd7c74f66bc6d7b7c5356276db534ddc6e6595877d953b97c4 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x107ED | 16888 bytes |
font_00_sfnt_off0000b035.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB035 | 16792 bytes |
font_01_sfnt_off0000c84c.bin79a14db5e12151f976ef20e7948ddd844ec84b4b54f99675cde1c82ec8416685 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC84C | 10632 bytes |
font_02_sfnt_off0000e0d0.bina6f300b23f9bb4f958fc7a6da4d7cec841f6909bef6860b53b4bfe7aaa5b6127 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0D0 | 15336 bytes |
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